Scenes from film about World War I, showing U.S. Infantry, Aircraft, Tanks, and planes in action

Scenes from American movie production about World War 1. De Havilland DH-4 attacks and destroys balloon, which goes down in flames. American M1917 tanks (representing French Renault FTs) break through barbed wire as several De Havilland DH-4 biplanes fly low overhead. Infantry advancing behind the tanks. German troops firing machine gun. Plane overhead drops bombs. Explosions raise smoke. (Note: these scenes are probably outtakes from the movie "Wings" shot at Kelly Field, San Antonio, Texas between 1926 and 1927.)